In the matter of 4 hours one of my mollies has developed a thick white patch (almost looks furry) on the top of its head. One of my platies also looks like part of its skin is peeling and a piece is just hanging there. I'm going to do a 25% water change, remove my snails, then use parasite clear. Can I also add aquirsol? Anything else I should be doing?

I think your right about the columaris. Theres a red area around the white. I treated the tank last night with aquarisol and salt. It doesn't seem as "fuzzy" this morning as it did last night.

Should I do a 50% water change today and add more aquarisol and salt? I used the last of my maracel 2 last week for one of my bettas and I don't have any more. I did order some last night but it will be a few days before it gets here. I have to order everthing because I don't have a car. Can I treat with the aquarisol and salt until it arrives? I read that salt and aquarisol were good for fungus. Some sites said that columaris was a fungus and others said it was a bacteria so I'm unsure as to what to do here.

Uh... No, your fish don't have ich so don't pump more copper into your tank. Run carbon for the next 24 hours to completely remove it. And you shouldn't medicate and add salt, a lot of medications already have salt in them and it can result in an over dose. I would do a 50% water change... I don't know if salt will really help any. All I can say is 25% water changes every day until the meds arrive.

If you don't have live plants you could reduce the amount of lighting they get. Maybe just turn it on for a while around feeding time? By the way you're describing it I don't know that they will last that long. Sorry to say but your medicine may not get there in time to save those two. I forgot to mention this is a nasty disease and if you have other tanks don't cross contaminate the equipment or else you'll have outbreaks in other tanks.

yea it's not looking good. He is the only one with the white fuzz and he's swimming around and eating like normal. I have 4 other fish that have been hiding all day today. I don't see it any wheres on them. I really hope I don't lose my betta and pleco that I have in this tank. I only have this 20 gallon tank and an eclipse 6 or I would move those 2 out of the tank. :(